JP2016221676A - Adjusting device - Google Patents

Abstract

The present invention relates to an adjusting device including an adjusting plate mounted so as to be rotatable about a central axis, a device for directing a manufacturing aid including the adjusting device, and a gripper device including the adjusting device. .
An adjustment device includes a base body and an adjustment plate (12) attached to the base body so as to be rotatable about a central axis (I), the adjustment plate (12) comprising: For an adjustment object attached to the base body so as to be pivotable about a tangential pivot axis, it has at least two guide slots (16) distributed around it, the guide slots ( A center line 16) extends around the central axis (I) along a spiral track (17).
[Selection] Figure 2

Description

  The present invention relates to an adjusting device comprising an adjusting plate mounted so as to be rotatable about a central axis. The invention also relates to a gripper device comprising a device for directing manufacturing aids and / or a regulating device.

  Various applications are known in which a plurality of elements arranged in a distributed manner around the adjustment plate are adjusted by rotation of the adjustment plate about a central axis.

  For example, a cooling device for a milling machine disclosed in Patent Document 1 includes a base plate and a plurality of nozzles attached to the base plate so as to be pivotable. In order to swivel the nozzle, a guide plate in the form of an annulus with a first guide slot extending radially for the nozzle is arranged in a stationary manner and inclined with respect to the tangential direction for the nozzle. An adjustment plate having a linear second guide slot extending in the same manner and having an annular shape is provided, and rotation of the adjustment plate relative to the guide plate causes the nozzle to move in the direction of the central axis in the first guide slot of the guide plate. Can be swiveled. The second guide slot of the adjustment plate extends obliquely with respect to the tangential direction, and therefore the distance from the central axis of the contact point between the second guide slot and the nozzle accommodated in the second guide slot. Changes as the adjustment plate rotates. In order to avoid tilting of the nozzle in the guide slot during swiveling and to allow the use of this adjusting device in the first place, the nozzle must be guided in the slot with sufficient play. In addition, the guide slot is formed to have a continuous chamfer or radius outside the nozzle pivot axis.

European Patent Application No. 1911548

  It is an object of the present invention to create an improved adjustment device that includes an adjustment plate. A further object of the present invention is to create a device in which the adjusting device can be used.

  Such a problem is solved by the invention having the features of claims 1, 12 and 17. Further advantageous configurations can be obtained from the dependent claims.

  According to a first aspect, an adjustment device includes a base body and an adjustment plate attached to the base body so as to be rotatable about a central axis, wherein the adjustment plate is centered on a tangential pivot axis. For the adjustment object attached to the base body to be pivotable as a centerline of the guide slot in a form having at least two guide slots arranged in a distributed manner around the circumference Are provided, each extending around a central axis along a spiral trajectory.

  The adjustment object accommodated in the guide slot is inclined based on contact with the wall of the guide slot when the adjustment plate rotates.

  In order to take into account the varying inclination of the adjustment object relative to the central axis, and to take into account the changing cross-section of the adjustment object in contact with the guide slot, in one configuration, The width of the guide slot varies across the entire spiral track. In other words, in this configuration, the guide slot is configured to reproduce an elliptical intersection between the cylindrical adjustment target and the plane of the adjustment plate in each inclined posture of the adjustment target. The exact configuration of the guide slot must be appropriately selected by those skilled in the art depending on the application, taking into account the required maximum adjustment angle, the accuracy to be maintained, the configuration of the object to be adjusted, and the like. The guide slot in this case has a wall having a convex shape in one configuration.

  In another configuration, the wall of the guide slot has an inclination angle that continuously changes with the inclination attitude over the entire spiral track in order to take into account the inclination attitude of the adjustment object relative to the central axis. ing.

  A guide slot that extends along a spiral trajectory and that has an angle of inclination whose walls change continuously is also referred to as a spiral slot in the context of the present application. By configuring the guide slot as a spiral slot according to the present invention, the adjustment object can be accurately adjusted without tilting when the adjustment object is guided in the guide slot almost without play. Become.

  The adjustment object is swiveled around the tangential swivel axis by the adjusting device. In the context of the present application, the expression tangential pivot axis is used to mean an axis located in the tangential direction of a virtual circle arranged coaxially with the central axis. The adjustment object is thus swiveled in a radial plane with respect to the central axis. In one configuration, the object to be adjusted is mounted in the base body so that it can be swiveled in any desired direction relative to the central axis, and movement by a stationary guide plate is centered on the tangential swivel axis. It is limited to the swivel motion to do.

  In an advantageous configuration, a bearing shaft is assigned to each of the adjustment objects, and the base body has a bearing receiver for the adjustment object, and the adjustment object has a stationary tangential pivot axis. It is mounted in a bearing receiver by a bearing shaft so that it can pivot as a center. As a result, a simple configuration is possible. The bearing receiver can be accessed from the side of the base body away from the adjustment plate, and a cover is provided for closing the bearing receiver. In this configuration, an opening is provided in the base body in the direction of the adjustment plate, and the object to be adjusted is guided through these openings. The opening is preferably configured as a slot extending radially with respect to the central axis so as to additionally assume a guiding function. However, other configurations are possible. In other configurations, the bearing receiver is directed to the adjustment plate, which can also serve as a cover element for the bearing receiver.

  In an advantageous configuration, the base body has a rotationally symmetric notch and the adjustment plate is mounted in the notch so as to be rotatable about a central axis. As a result, the adjusting device can be designed as a compact assembly with a small overall height.

  In an advantageous configuration, a cover element is provided for covering the adjustment plate, the cover element having a slot extending radially from the central axis. The cutout provided for the adjustment plate in the base body is dimensioned sufficiently deep in one configuration to also insert the cover element in the cutout. In another configuration, the cover element is disposed on the base body. The slot extends radially with respect to the central axis. In one configuration, the slot has a width approximately corresponding to the diameter of the object to be adjusted so as to additionally assume a guiding function. In another configuration, the slot is dimensioned so that the object to be adjusted is guided with great play through the slot and the slot does not carry a guiding function for the adjusting movement. As a result, contact and wear phenomena resulting from contact are avoided.

  In order to move the adjustment plate, in one configuration, the adjustment plate has teeth on the outer peripheral surface and / or adjustment levers for the drive. The drive can in this case be configured as a motorized drive, or as a crank, or as an adjustment wheel for a manual drive.

  In one configuration, an electric adjustment device is provided that includes an actuator for adjusting the adjustment object. Such an adjusting device can be used as appropriate regardless of the structure of the guide slot.

  Specifically, in an advantageous configuration, the actuator of the electric adjustment device is drivingly coupled to the adjustment plate by a coupling mechanism. The coupling mechanism makes it possible to convert the rotational movement of the actuator, more precisely the rotational movement of the actuator drive shaft, into a reciprocating or oscillating movement of the adjusting plate about the central axis.

  The coupling mechanism can be appropriately configured by those skilled in the art depending on the application. In one configuration, the coupling mechanism includes an eccentric body that is rotatable about an eccentric axis that can be driven about the eccentric axis by an actuator for rotational movement.

  In another configuration, the adjustment plate has elements for the drive device arranged coaxially with a shaft extending in the direction of the central axis, in particular in the direction of the central axis. Even in such a configuration, a motor-equipped drive device, specifically, an electric drive device or a manual drive device is possible. Depending on the requirements, the element, in particular the shaft, is manufactured in one piece with the adjusting plate or is coupled with the adjusting plate to rotate together. In one configuration, the coupling is performed by any suitable coupling means that can be dissociated non-destructively. In other configurations, the components are not coupled in a non-destructively dissociable state, but are coupled by, for example, welding.

  The adjustment device can be used as appropriate in many applications.

  According to a second aspect of the present invention, an apparatus for directing manufacturing aids for machine tools is created, the apparatus comprising at least two movable nozzles and an adjusting device for adjusting movement of the nozzles. Including. Therefore, the adjustment object of the adjustment device is a movable nozzle. In this case, the adjustment device can direct the nozzle to a specific point, in particular a cutting point or entry point of a tool such as a drill, a milling tool, a grindstone or the like. The production aid is, for example, air.

  In an advantageous configuration, the at least two nozzles are configured as coolant nozzles. The production aid is in this case a coolant, specifically a coolant.

  In one configuration, all nozzles are directed to a common point at their respective adjustment positions. In an advantageous configuration, at least two nozzles of the device have a tilting attitude with respect to the central axis which is different from each other at each adjustment position. Thus, the nozzles are not directed to a common point. This may be advantageous because the coolant is supplied at two locations. For example, it is conceivable to direct the coolant to both the drill tip and the second location of the drill. In one configuration, the nozzle is in this case adjusted by the same adjustment angle during the adjustment movement by the adjustment plate. In other configurations, the nozzle is adjusted by different adjustment angles by means of a corresponding configuration of guide slots.

  Three or more nozzles are provided, and at least some of the nozzles have a tilted attitude with respect to the central axis where they meet in groups or pairs. Thus, the nozzles are directed in groups or pairs to a common point, specifically a cutting point or entry point.

  In an advantageous configuration, the base body and the adjusting plate have a basic shape in the form of an annulus or annulus segment. The device can be arranged around the tool, for example the tool axis and the central axis of the adjusting device are arranged coaxially.

  According to a third aspect, a gripper device is created that includes at least two movable fingers and an adjusting device for adjusting movement of the fingers. The gripper preferably has 3 or 4 fingers. In this case, the fingers are objects to be adjusted by the adjusting device, and the fingers are moved by moving the adjusting plate toward each other by moving the adjusting plate, or released by moving away from each other.

  The fingers are preferably arranged so as to have a tilting attitude that matches the central axis at each adjustment position, and the guide slots of the adjustment device are configured to be congruent so that the fingers perform a synchronous adjustment movement. It has become.

  Further advantages and aspects of the present invention can be obtained from the following description of preferred embodiments of the invention described with reference to the claims and schematic drawings.

It is side sectional drawing which shows an adjustment apparatus. FIG. 2 is a plan view showing an adjustment plate for the adjustment device of FIG. 1. It is a perspective view which shows the adjustment plate similar to FIG. It is a sectional side view which shows a part of adjustment apparatus of FIG. 1 with an adjustment target object. It is side sectional drawing which shows a part of adjustment apparatus similar to FIG. 1 with an adjustment target object. 1 shows a first embodiment of an apparatus for directing manufacturing aids for machine tools. It is a top view which shows the apparatus of FIG. It is sectional drawing which shows the apparatus of FIG. 6 in the 1st inclination attitude | position along the plane VIII-VIII of FIG. It is sectional drawing which shows the apparatus similar to FIG. 6 in the 1st inclination attitude | position along the plane VIII-VIII of FIG. It is sectional drawing which shows the apparatus of FIG. 6 in the 2nd inclination attitude | position along the plane VIII-VIII of FIG. It is a perspective view which shows the 2nd embodiment of the apparatus similar to FIG. It is an exploded view which shows the apparatus of FIG. It is sectional drawing which shows the detail of the apparatus of FIG. It is a side sectional view showing the gripper device together with the adjusting device. It is a top view which shows the base body of the adjustment apparatus of FIG. It is a top view which shows the adjustment plate of the adjustment apparatus of FIG.

  FIG. 1 shows an adjustment device 1 including a base body 10 and an adjustment plate 12 attached to the base body 10 so as to be rotatable about a central axis I. Each of the base body 10 and the adjusting plate 12 has a region in the form of a ring. The illustrated base body 10 has a rotationally symmetric cutout 13, more precisely a cutout 13 in the form of a ring. Within this notch 13, the adjusting plate 12 is rotatably received.

  The adjustment object 2 is attached to the base body 10. For this purpose, the base body 10 has a support receiver 14 on the side away from the adjustment plate 12. A bearing shaft 20 is assigned to each of the adjustment objects 2. The adjustment object 2 is mounted in the bearing receiver 14 by a bearing shaft 20 so as to be pivotable about a stationary tangential pivot axis as indicated by an arrow. The bearing receiver 14 is accessible from the side away from the notch 13 for inserting the adjustment object 2. In other arrangements, the bearing receiver 14 is open in the direction of the notch 13 and the adjustment plate 12 also serves as a cover element for the bearing receiver 14.

  A cover element 15 is provided on the adjustment plate 12 on the side away from the base body 10.

  Since the object 2 to be adjusted has a different inclination with respect to the central axis I, the jet 22 on the extension of the object 2 to be adjusted is directed to different points on the central axis I.

  The adjustment object 2 can be turned around the turning axis of the adjustment object by the rotation of the adjustment plate 12 with respect to the base body 10.

  FIG. 2 is a plan view showing an adjusting plate 12 for the adjusting device 1 of FIG. FIG. 3 is a perspective view showing a similar adjustment plate 12. Each of the adjustment plates 12 shown in FIGS. 2 and 3 has eight guide slots 1. These guide slots 16 are arranged in a distributed manner around the periphery, and the center lines of the guide slots 16 are respectively centered along the central axis I along a spiral track 17 schematically indicated by a chain line in FIG. Extends around.

  The adjustment plate 12 also has four slot holes 18 each. These slot holes 18 extend in the circumferential direction and serve to rotatably tighten the adjustment plate 12 to the base body 10.

  In the embodiment of the adjustment plate 12 shown in FIGS. 2 and 3, the guide slot 16 has a radial width in each case in order to be able to guide the cylindrical adjustment object with as little play as possible. It is going to change. In this case, the width of the guide slot is adapted in any case to the required degree of opening resulting from the inclined position. The width of the guide slot in the radial direction increases corresponding to the required opening degree which increases with the tilting posture. In other words, the width of the guide slot in the radial direction decreases as the distance from the central axis increases. In the illustrated embodiment, the tilting posture of the adjustment object 2 is intended to increase in the counterclockwise direction.

  In the embodiment shown in FIGS. 1 and 2, each guide slot 16 has a wall having a convex shape.

  In the embodiment of FIG. 3, the guide slot 16 is configured as what is called a spiral slot. As is apparent from FIG. 3, the walls of these spiral slots are adjusted over the entire spiral track 17 in order to take into account the tilting posture of the adjustment object 2 (see FIG. 1) that varies with respect to the central axis I. It has an inclination angle that continuously changes together with the inclination posture of the object 2.

  FIG. 4 is a side sectional view showing a part of the adjusting device 1 similar to FIG. 1 together with the adjusting plate 12 and the adjusting object 2 of FIG. The object 2 to be adjusted is moved to a predetermined inclination posture with respect to the central axis I by the rotation of the adjustment plate 12. As can be seen from FIG. 4, the object to be adjusted 2 is in contact with the wall 160 of the guide slot 16 along the line. The adjustment object 2 is moved to a different inclination posture with respect to the central axis I by the rotation of the adjustment plate 12. The inclination angle of the wall 160 changes so that the object to be adjusted 2 contacts the wall 160 of the guide slot 16 along the line in any inclination posture.

  5 is a side sectional view showing a part of the adjusting device 1 of FIG. 1 together with the adjusting plate 12 and the adjusting object 2 of FIG. Unlike the embodiment of FIG. 4, the wall 160 of the guide slot 16 is not inclined but has a radius. When the adjustment plate 12 is rotated, the contact point of the adjustment target object 2 with respect to the inside of the guide slot moves downward along a predetermined radius. In contrast, the contact point of the object 2 to be adjusted with respect to the outside of the guide slot moves upward along a predetermined radius.

  FIG. 6 is an exploded view showing a part of a device 3 for guiding manufacturing aids for machine tools (not shown), more precisely a device for supplying coolant. This device comprises a plurality, specifically eight nozzles 4 configured as coolant nozzles, and an adjusting device 1 having a base body 10 and an adjusting plate 12.

  The nozzle 4 is disposed in a support body receiver 14 provided in the base body 10 by a support shaft 20 and a support cover 24 so as to be distributed around the support body receiver. The coolant is supplied through a conduit 100 machined in the base body 10. A plurality of O-rings (not shown) and a cover element 19 are provided for sealing.

  A cover element 15 is provided to cover the adjustment plate 12. The cover element 15 has a slot 150 extending radially from the central axis I for an adjustment object configured as a nozzle 4. The cover element 15 and the adjustment plate 12 are fastened to the base body 10 by screws 6, washers 60 and fixing sleeves 62. Since the fixing sleeve 62 is guided in the slot hole 18 of the adjusting plate 12, the adjusting plate 12 can rotate about the central axis with respect to the cover element 15 and the base body 10.

  For the adjustment movement, the adjustment plate 12 has on its outer periphery an outer tooth row 120 that cooperates with the drive device 7. In the embodiment shown, a manual drive 7 is provided. The drive shaft 70 can be rotated around its axis by a crank (not shown) or the like. The drive shaft 70 drives a gear (not shown) that cooperates with the outer tooth row 120. Alternatively, a drive device with a motor for the drive shaft 70 is also conceivable.

  FIG. 7 is a plan view showing the device 3 of FIG. 6, and FIGS. 8 and 10 show the device 3 of FIG. 6 in two different inclined positions of the nozzle 4 along the plane VIII-VIII of FIG. FIG. 3 is a cross-sectional view, and the adjustment plate 12 of FIG. 2 is provided. 9 is a cross-sectional view of the same device 3 as in FIG. 6 along the plane VIII-VIII in FIG. 6, and is provided with the adjusting plate 12 in FIG.

  As can be seen from FIGS. 8 to 10, since the nozzles 4 have different angles or inclined postures with respect to the central axis I, the coolant jet 22 exiting the nozzle 4 is directed to two different points on the central axis I. The When the inclination posture of the nozzle 4 is changed by the rotation of the adjustment plate 12, the distance L between the intersections of the coolant jet 22 and the central axis I changes according to the trigonometric formula. If the device 3 is mounted on a machine tool so that it can also be displaced along the central axis I, the directional supply of coolant can be adapted virtually infinitely to a very wide variety of requirements.

  The basic shape of the adjusting device 1 in the form of a ring is just an example. Other shapes are also conceivable. For example, it is conceivable to provide a basic shape in the form of an annular segment. Such a basic shape allows the device 3 to be moved laterally relative to its head towards the machine tool.

  FIGS. 11 to 13 are a perspective view, an exploded view, and a cross-sectional view showing another configuration of the device 3 for directing the manufacturing aid. The device 3 is similar to the device 3 of FIG. 6, and corresponding reference numerals are used for identical or similar parts.

  The device 3 of FIGS. 11 to 13 includes a plurality of nozzles 4 configured as coolant nozzles and an adjusting device 1, by means of which the nozzle 4 can be swiveled. The adjusting device 1 includes a base body 10 and an adjusting plate 12 (not seen in FIG. 11) and has an adjusting lever 122 protruding radially. As schematically shown by the double arrow in FIG. 12, the adjustment plate 12 can be rotated about the central axis I by applying a force in the circumferential direction to the adjustment lever 122. In contrast to the previous configuration, an electric drive 700 for moving the adjustment plate 12 is provided.

  The electric drive device 700 includes an actuator 701 and an eccentric body 702 having an eccentric pin 703. The eccentric body 702 is rotatable around an eccentric axis II that extends parallel to the central axis. The eccentric pin 703 engages with a slot hole provided in the adjustment lever 122. The eccentric body 702 and the adjustment lever 122 form a coupling mechanism. The rotational motion of the eccentric body 702 around the eccentric axis II is converted into the reciprocating vibration motion of the adjusting lever 122 and thus the adjusting plate 12 around the central axis I. As a result of the eccentric body 702 being rotated about the eccentric axis II, the adjustment plate 12 is rotated about the central axis. The distance between the eccentric axis II and the central axis I and the dimensions of the eccentric body 702 and the adjusting lever 122 in this case are such that when the eccentric body 702 is fully rotated by 360 °, the adjusting lever 122 is between the two maximum positions. Selected to be moved. The eccentric pin 703 of the illustrated embodiment is provided with a guide sleeve 704 so that the eccentric pin 703 is guided with little wear and / or to avoid frictional forces.

  The eccentric body 702 and the adjustment lever 122 are received in the housing 705. The adjustment lever 122 is introduced into the housing 705 through the slot 706. In one embodiment, the housing 705 serves as an additional motion limiter for the adjustment lever 122. However, the adjustment lever 122 and the housing 705 are preferably configured such that the adjustment lever 122 does not collide with the housing 705 during movement.

  The housing 705 is fastened to the base body 10 of the adjusting device 1 by two screws 707.

  The housing 705 further has a notch 708 that opens upward in the form of a cylinder. An eccentric 702 is received in the notch so as to be rotatable about the eccentric axis II. Notch 708 is closed by plate 709. The actuator 701 can be attached to the side of the plate 709 away from the housing 705. The drive shaft 710 of the actuator 701 is guided through a notch provided in the plate 709 and is coupled to the eccentric body 702 by a threaded pin 711 (see FIG. 13). Other coupling possibilities are conceivable, for example by screws or by dowel pins. The actuator 701 is further covered with a motor guard 712. The motor guard 712 has a non-destructively removable cover for easier access.

  In the illustrated embodiment, the eccentric 702 has four notches 713. The weight of the eccentric body 702 can be reduced by these notches. In addition, a sensor that makes it possible to determine the position of the eccentric body 702, such as a Hall sensor, can be inserted into the cutout 713.

  14 to 16 show another application in which the adjusting device 1 according to the invention is used in the gripper device 7. FIG. 14 is a side sectional view of the gripper device 7. FIG. 15 is a plan view showing the base body 10 of the related adjustment device 1. FIG. 16 is a plan view showing the adjustment plate 12 of the related adjustment device 1.

  The adjustment objects of the adjustment device 1 are four fingers 8. Each of these fingers is attached to the base body 10 so as to be pivotable about a tangential pivot axis. For this purpose, each finger 8 has a bearing shaft 20. The bearing shaft 20 is received in the bearing receiver 14. On the side of the support receiver 14 facing the adjustment plate 12, the base body 10 has a through opening 101 through which the finger 8 is guided. In the illustrated embodiment, the through opening 101 is configured as a slot hole extending in the radial direction.

  A cutout 13 is provided on the side of the base body 10 away from the bearing receiver 14. An adjustment plate 12 and a cover element 15 are inserted into the cutout. The cover element 15 also has a notch for the finger 8 in this case. As noted above, these notches are preferably configured as radially extending slots.

  As can be seen from FIG. 16, the adjustment plate 12 has a guide slot 16. The center lines of these guide slots extend along the spiral track 17 about the central axis I.

  The width of the guide slot 16 in the radial direction is changed in order to compensate for the required opening degree, taking into account the inclined posture of the finger 8 that changes with respect to the central axis. In this case, as can be seen from FIG. 14, the finger 8 pivots in both directions from a zero position oriented parallel to the central axis I. Accordingly, the width of the slot 16 increases towards the end in each case so that the finger 8 is guided at least almost free of play in the guide slot 16 in each inclined position.

  In order to take into account the tilting attitude of the adjustment object 2 with respect to the central axis I, the wall 160 of the guide slot 16 has an inclination angle that varies continuously with the tilting attitude over the spiral track 17. Therefore, as can be seen from FIG. 14, the adjustment object 2 contacts the guide slot 16 along the line. In other configurations, the wall 160 has a radius.

  The fingers 8 have an inclined posture that matches the central axis I. That is, all fingers 8 are oriented at a common point on the central axis I.

  In order to initiate the adjusting movement of the fingers 8, the adjusting plate 12 has a shaft 121 that can be coupled to a drive (not shown). However, other driving devices such as the outer dentition or the coupling mechanism are also conceivable.

  The illustrated use of the adjusting device 1 is only an example. Other uses are also possible.

Claims (18)

An adjustment device comprising a base body (10) and an adjustment plate (12) attached to the base body (10) so as to be rotatable about a central axis (I), wherein the adjustment plate ( 12) at least two guide slots (16) arranged around the periphery for the adjustment object (2) mounted on the base body so that it can pivot about a tangential pivot axis In an adjustment device having
An adjustment device, characterized in that the center line of the guide slot (16) extends around the central axis (I) along a spiral track (17).   In order to take into account the tilting posture of the object to be adjusted (2) that changes with respect to the central axis (I), the width of the guide slot (16) varies over the entire spiral track (17). The adjustment device according to claim 1, wherein:   The wall (160) of the guide slot (16) extends over the spiral track (17) in order to take into account the tilting attitude of the adjustment object (2) that changes with respect to the central axis (I). The adjusting device according to claim 1, wherein the adjusting device has an inclination angle that continuously changes with the inclination posture.   A bearing shaft (20) is assigned to each of the adjustment objects (2), and the base body (10) has a bearing body receiver (14) for the adjustment object (2). The adjustment object (2) is mounted in the bearing receiver (14) by the bearing shaft (20) so as to be pivotable about a stationary tangential pivot axis. The adjustment apparatus as described in any one of Claims 1-3.   The base body (10) has a rotationally symmetric notch (13), and the notch (13) so that the adjustment plate (12) is rotatable about a central axis (I). The adjusting device according to claim 1, wherein the adjusting device is attached inside.   A cover element (15) for covering the adjustment plate (12) is provided, and the cover element (15) has a slot (150) extending radially from the central axis (I). The adjusting device according to any one of claims 1 to 5, wherein   7. The adjusting plate (12) according to any one of claims 1 to 6, characterized in that it has a dentition (120) and / or an adjusting lever (122) for the drive device on its outer peripheral surface. The adjusting device according to.   The adjustment device according to any one of claims 1 to 7, or the premise part of claim 1, wherein the adjustment device includes an actuator (701) for adjusting the adjustment object. 700). The adjustment device according to any one of claims 1 to 7, characterized in that a control device 700) is provided.   9. The adjustment device according to claim 8, wherein the actuator (701) of the electric adjustment device (700) is drivingly coupled to the adjustment plate (12) by a coupling mechanism.   10. The adjusting device according to claim 9, wherein the coupling mechanism includes an eccentric body (702) that is rotatable about an eccentric axis (II).   7. The adjusting plate according to claim 1, wherein the adjusting plate has an element arranged coaxially with the central axis, in particular a shaft for the drive. An adjusting device according to claim 1.   Manufacturing aid for machine tools, comprising at least two movable nozzles (4) and an adjusting device (1) according to any one of claims 1 to 11 for adjusting movement of the nozzle (4). Device for directing agent.   13. Device according to claim 12, characterized in that the at least two nozzles (4) are in the form of coolant nozzles.   14. Device according to claim 12 or 13, characterized in that the at least two nozzles (4) have a tilting attitude with respect to the central axis (I) which is different from each other at each adjustment position.   Three or more nozzles (4) are provided, at least some of which (4) have a tilting attitude with respect to the central axis (I) that meet in groups or pairs at each adjustment position The device according to claim 12, wherein the device is a device.   16. The base body (10) and the adjusting plate (12) have a basic shape in the form of a ring or a ring segment, according to any one of claims 12-15. Equipment.   A gripper device comprising at least two movable fingers (8) and an adjusting device (1) according to any one of the preceding claims for adjusting movement of the fingers (8).   Three, four, five or more fingers (8) are provided, preferably the fingers (8) have an inclined attitude with respect to the central axis that coincides at each adjustment position. The apparatus of claim 17.